title: Di-aqua-bis-(3-chloro-benzoato-κO)bis-(nicotinamide-κN (1))cobalt(II).
abstract: In the title complex, [Co(C7H4ClO2)2(C6H6N2O)2(H2O)2], the Co(II) atom is located on an inversion center and is coordinated by two 3-chloro-benzoate (CB) anions, two nicotinamide (NA) ligands and two water mol-ecules. The four O atoms in the equatorial plane form a slightly distorted square-planar arrangement, while the slightly distorted octa-hedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxyl-ate group and the adjacent benzene ring is 9.14 (9)°, while the pyridine and benzene rings are oriented at a dihedral angle of 82.18 (8)°. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into a two-dimensional network lying parallel to (101). π-π stacking between parallel pyridine rings of adjacent mol-ecules [centroid-centroid distance = 3.7765 (8) Å] further stabilizes the crystal structure.
authors.affiliation: Department of Chemistry, Kafkas University, 36100 Kars, Turkey.
authors.forename: Nihat
authors.initials: N
authors.lastname: Bozkurt
authors.forename: Nefise
authors.initials: N
authors.lastname: Dilek
authors.forename: Nagihan
authors.initials: N
authors.lastname: Caylak Delibaş
authors.forename: Hacali
authors.initials: H
authors.lastname: Necefoğlu
authors.forename: Tuncer
authors.initials: T
authors.lastname: Hökelek